Car-truck.



J. A.. BROOKS.

CAR TRUCK.

APPLICATION FILED SEPT. 9, 1913,

Patented Aug. 11, 1914.

ww S Y, TED @garras iranienne ersten.

JAMES A. BROOKS, 4O1" PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE J. G.

BRITJL CO., Oe PHILADELPHIA, PENNSYLVANIA, A, CORPORATION 0I* SYLVANIA.

PENN- CARLTRCK.

Speciiication of Letters Patent,

Patented Aug. 11, 1911i.

Application filed September 9, 1913.l Serial No. 788,786.

T0 all e071 om it' may concern Be it known that l, JAMES A. Bnoons, a 'citizen of the United States, and resident ol' Philadelphia, county of Philadelphia, and

. State of Pennsylvania; and whose post-office address is care of The J. G. Brill Co.,Sixty second street and Vtloodland avenue, in said city, have invented certain knew and useful Improvements in Car-Trucks, of which the following is a specification. l

My invention relates to improvements 1n lswing bolster car trucks, and particularly to fication, Figure 1' is a side elevation showing a portion or" the side-frameof a car truck, and the improved bolster connect-ion supported them trom; and Fig. 2 is an enlarged side elevation and section of a portion of the bolster', side frame and spring-connection between the leaf spring and the bolster, the section being taken on the line 2-2 of Fig. 1, looking in the direction of the arrows.

Similar reference characters designate like parts throughout the several views.

For the purpose of describing my invention, I have not deemed it necessary to illustrate an entire truck construction, as those skilled in Vthe art are familiar therewith. However, orthe purpose of further illustration, reference is made to the truck shown in the application filed by Walter S. Adams, on the 18th day of June, 1913, Ser. No. 774,286'.

In the drawinggl is an intermediate portion of the side-bar or upper chord of the car truck frame. This is usually provided with pedestals of conventional or desired construction. It will be understood that all of the parts hereinafter described, except the bolster, are duplicated at each side of the truck, the pedestals engaging axle boxes ,A which hold axles and `wheels in the usual manner. The side-bar .or upper chord is connected transversely by the usual transoms 2 shown in dotted lines in Fig. 1, and other crossings in the usual manner. At 3 are hangers comprising pendant side pieces 4, which hangers embrace the side-bars and. rest at their upper ends 5 on bearings 6, the

lower ends 7 carrying blocks 8 forming C spring-seats. A form of hanger of the class described is shown in said Adams application. At `9 is the semi-elliptic leaf spring, which, in the .present case, is arched upwardly and its ends provided with projections 10v engaging the spring seats 8l As above stated, it will be understood that there are to be two of such springs, one on each side of the truck, and disposed longi tudinally below the side-bars 1 'Z0 At 11 is the bnlster, shown in the presentcase as a casting h ving an enlarged intermediate section 12 adapted to pass between the transoms 2 and outer ends or extensions 13 passing underneath and clearing the side 75 bars of the truck frame. These extensions comprise a horizontal top web 14, having at cach side pendant flanges 15, and Within the flanges spring-seats 16 are formed.

The leafssprings 9 are provided with the `30 usual strap CrJLand 17 at their centers, and upon this band is seated a saddle 18 onsisting of a casting having an intermediate ectangular recess 19 embracing the strap 1\7,\

and front and rear end-walls 20, 21 consti- S5 tuting, with the walls 22 of the said recess, spring-seats 23, 24, and upwardly extending side-iiaiiges 25 lying within the plane of the pendant flanges 15. Extending between the respective spring seats are the coil or spiral All springs 26, 27 which thus lie one beyond and the other within the said leaf springs. The bolster is thussupported on the leaf springs 9 by a plurality of other springs of different rhythm of movement, which are ranged both outside and inside of the leaf springs, thereby providing for a resilient support ofthe bolster on the leaf springs, the inner end of the cradle 18 lying within the plane ofthe bolster, so that the walls 21, 28 thereofmay 100 engage to restrain excessive movement on the spiral springs 1n a longitudinal direction,

while at the same time permitting of the usual movement of the bolster on the spiral springs in taking and relieving the leaf springs of the car load. Displacement be tween the connections in the direction of the length of the leaf springs may be prevented by the engagement of the flanges 15, 25, there being sufficient play allowed between them for all practical purposes, without epgagement. i

Within the scope of the appended claims, my invention may be variously embodied without departing from its spirit.

Having described my invention, I claim:

1. In a car truck, the combination with a truck frame body-supporting springs sup-- ported on the truck frame, a plurality of springs supported on the body-supporting springs and ranged transversely thereof, and a bolster supported on said plural springs. ,Y

.2. In a car truck, the combination with a truck frame, body-supportingsprings sup-4 spri-ngs ranged transversely thereof and disposed at each side of the vertical axis of the said body-supporting springs, and a bolster upported on said latter springs.

4. In a car truck, the combination -with a truck frame, body-supporting springs supported ,on the truck frame, a plurality of upwardly extending spiral springs support-ed on the body supporting springs ranged transversely thereof and disposed at each side of the vertical axis of the said bodysupporting springs, and a bolster supported on said latter springs.

5. In a car truck, thejcombination with the side bars of the truck frame, hangers pendant therefrom, longitudinally disposed leaf springs supported by said hangers, a plurality of Springs supported on the leaf springs and ranged transversely thereof, and a bolster supported on said latter springs.

6. In a car truck, thc combination with the side bars of the truck frame, hangers pendant therefrom, longitudinally disposed leaf springs supported by said hangers, a plurality of springs supported on the leaf springs and ranged transversely thereof, a bolster supported on said latter springs, and means for movably connecting the bolster and the leaf springs independent of the latter springs.

7.' In a car truck, the combination with side bars of the truck frame, hangers pend ant therefrom, a cross bolster, longitudinally disposed means for supportin the bolster Vfrom the hangers,

ranged in the direction of the length of the bolster outside and withinthe said means and supported thereon.

8. In acar truck, the combination with side bars of the truck frame, hangers pend-- ant therefrom, a cross bolster, longitudinally disposed means for supporting the bolster and a plurality of springs from the hangers, a plurality of springs ranged in the direction of the length of the bolster outside and within the said means, and further means for permitting a movable engagement of the bolster and said hanger connection.

9. In a car truck, the combination with side bars of the truck frame, hangers suspended therefrom, semi-elliptic springs connecting the hangers, a saddle on the said springs, a bolster having extensions at the ends, and a plurality of spiral springs interposed between each of said saddles and said bolster extensions'and disposed at each side of the said leaf spring and in the direction of the length of the bolster.

l0. In a car truck, the combination with a truck frame, a bolster-support on the truck frame, a spring seat on the bolster support, a plurality of longitudinally disposed springs on the spring seat, a bolster resting ou said plural springs, and means extending, between the spring seats and the bolster for restraining horizontal displacement of the bolster on said springs.

11. In a car truck, the combination with a truck frame, a bolster support thereon, transversely disposed saddles on said sup port, the saddles having side and rear flanges inclosinl spring seats, a bolster 'having pendant si e flanges opposing the side flanges of the saddles and a transverse fiange opposing the end flange of the saddles and spring seats inclosed by said flanges, and springs extending between the saddlesand bolster spring seats. y

12. In a car truck, the combination with side bars of the truck frame, hangers sus pended therefrom, semi-elliptic springs connecting the hangers, vsaddles on the said springs, a bolster having extensions at the ends, a plurality of spiral springs interposed between said s'addles and said bolster extensions, and opposing flanges on the saddles and bolster extension.

13. In a car truck, the combination with side frames, pendant hangers, means for connecting the hangers, saddles each having a recess en aging said hanger connection and extending transversely ofy ythe truck frame, recessed spring' seats in the saddle at each side of said recess, a bolster having an extension, and a spiral spring seated in each of the saddle recesses and bearing against the bolster extension.

Si ed at the city and county of Philadelp ia, State of Pennsylvania, this 16th day of August, 1913.

JAMES A. BROOKS.

Witnesses:

HENRY C. ESLING, H. F. MCKILLIP. 

